Casement sash adjuster or the like



March 10, 1942. B. E. BARTHOLOMEW 2,275,530

" CASEMENI' SASH ADJUSTER OR THEJJIKE Filed May 16, 1959 Patented Mar. 10, 1942 UNITED STATES ATENT OFFICE 11 Claims.

Myinvention relates to a drive or operating mechanism or adjuster to develop a rotation of a screw shaft, a rotating shaft or a rotating gear which is located in a more or less inaccessible position due to its elevation above the operator. My invention is of a type having utility for opening and closing casement or similar pivoted sash, a set of louvers or mechanism for rolling in and unrolling awnings or the like. My invention however is particularly designed for operation on sash adjusters for swing casement sash as exemplified in my U. S. Patent No. 1,732,709, issued October 27, 1929.

It is quite a common procedure in large buildings such as schools, auditoriums, church buildings and the like to have pivoted casement or similar type of sash at a considerable elevation above the floor and in which these are operated for opening and closing by some type of a screw or rotating shaft type of device. A main object and. feature of my invention therefor involves a construction of a rotational drive mechanism whichmay be removably connected to the operating shaft and actuated from the floor. A feature of this construction is providing a rotating driving assembly with a plug-like rotating or driving shaft mounted on a housing attached to the upper end of a long pole in which the rotating plug ordrive shaft is actuated in its rotational movement by a sprocket gear having a chain or the equivalent, the chain extending downwardly within convenient reach of the operator. Another characteristic of my invention is an interchangeable construction by which when desired the drive mechanism may be directly attached to part of the sash adjuster and have. the chain suspended from the overhead drive sprocket whereby the rotational movement may be given directly by manipulating the chain.

A further characteristic of my invention asto the portable and readily removable type of drive mechanism features a guide bracket attached to part of the mechanism of the sash adjuster or part of the equipment having the rotating driven shaft. With this I employ a long pole on the upper end of which is a complementary guide and supporting finger which may be inserted in the guide bracket and thus locate the actuating ro-' tating plug type of drive shaft with the plug projecting from one side and in the housing the shaft has a sprocket mounted thereon with an endless chain taking over the sprocket and depending downwardly along the pole.

Another characteristic of my invention is having the housing with the plug shaft and sprocket chain equipment formed in a complete assembly to be removable from the finger plate and attached to part of the adjuster of the sash or the like. With this equipment I utilize a replaceable socket plug of the driven shaft or screw, such socket plug being provided with a recess to be engaged by the plug shaft rotated by the sprocket and chain. In this connection another detail. feature of my invention is providing the housing so that it may be attached by screws or the like to a hinge leaf acting as a thrust plate for the rotating screw assembly, thus mounting the housing with the driving plug directly on the leaf to swing with such leaf on its pintle pin, such construction being suitable for conditions in which the pintle pin is arranged horizontally. For an equipment in which the pintle pin is vertical as on which the sash opens on a vertical hinge, the housing for the sprocket chain and plug shaft has the plug secured to-the socket structure of the driven screw, hence the housing may tilt in accordance with the angular movement of the leaf on the vertical axis of its pintle, therefore by making a slight change, parts of the same equipment may be used on the upper end of a long pole for turning a shaft or may be directly connected to such shaft andhave this rotated by means of a sprocket and a long endless chain.

My invention is illustrated in connection with the accompanying drawing, in which:

tating plug shaft in the proper position relative to the driven shaft. A further characteristic of myinvention involves a sprocket housing atbracket whereby in such housin I provide a-ro- Fig. 1 may be considered as a vertical longitu removable drive mechanism therefor. The section may be considered taken respectively on the section lines |l of Figs. 2 and 3, in the direction of the arrows.

Fig. 2 is a front elevation of part of the sash adjustertakenin the direction of the arrow' 2 of Fi 1.

Fig. 3 is a front elevation of the removable.

operating mechanism for the adjuster taken in the direction of the arrow 3 of Fig. 1.

Fig. 4 is a longitudinal section of the sash adjuster similar to Fig. 1 but showing the operating and driving equipment directly connected thereto.

dinal section through the sash adjuster and the opening [1 and a plurality of threaded screw receiving sockets it. There is also a recess I 9 at the top, the contour of the leaf plate l6 preferably being as shown in Fig. 2.

A bracket 25 is formed of a plate ,26 having an angular bend 21 with a lower portion 28 fitting in the recess l9 and attached to the moving hinge leaf it by screws 29. This bracket is made in the form of a yoke, at its outer end 30 having two arms 3! spaced apart by a converging opening. 32, this being for a purpose hereunder designated.

A rotatable hollow shaft 35 has an outer tube 36 with a threaded connection to a combination thrust plug and socket 3'1, this being provided withan annular shoulder 38 abutting against the outer face of the leaf plate I 6 and having a cylindrical portion 39 extending through the circular opening H. A locking collar 4!] is attached by a set screw, this collar fitting snugly against the inner face of the plate it. A squared or similar socket ll extends longitudinally through the thrust plug and socket the socket being firmly attached to the tube 35 by a locked pin 42. A series of nested or telescopic screws 45 are housed and operative within the outer tube 36. This assembly may be constructed and operate and have an attachment to a sash substantially' similar to that of my Patent No. 1,732,709 above noted.

The actuating or power assembly designated by the numeral 55 and illustrated particularly in Figs. 1 and 3 includes a long pole 5| by which the custodian or person operating the windows may reach to the adjusting assembly in a high elevation above the floor. A finger plate '52 has a substantial base 53 which is illustrated as provided with a screw threaded connection .on the upper end of the pole 5!. tion 5 3 with a plurality of threaded screw receiving recesses 55 and a central circular opening 56. A curved finger 5? extends upwardly from the main plate portion and terminates in a bulbous type of cross bar 58. thus be inserted in the yoke of the bracket 25 to fit between the two arms M with the cross bar engaging above these arms as shown in Fig. l. The yoke thus forms a guide in bringing the drive mechanism into its operative position.

Mounted on the plate 54 I have a housing 60. This is provided with a back plate 5! with an integral outwardly extending rim 82. The back plate is attached to the plate 54 by screws 63 threaded in the recesses 55. A removable cover plate 6 3 is attached to the periphery of the rim 62 by screws or the like and there are circular There is a plate sec- The finger may shaft journals 65 in the cover 54 and 66 in the back plate 6i. The lower portion of the rim. is

provided with perforations 67 for the passage of an operating chain.

The drive shaft assembly 16 includes a reduced diameter cylindrical shaft end 7! having a bearing at 65. On this is secured a sprocket wheel 12 by a key or the like. An enlarged cylindrical portion 13 has a hearing at 56 in the back plate 6! and extends partly through the opening '55 in the plate 54. A squared or similar irregular shaped driving plug shaft 14 extends through the remainder of the opening 56 and beyond the plate 54, this being provided with a guide point 15. The drive chain 15 takes over the sprocket wheel and has the two ends passing downwardly through the openings 5?.

The manner of operation and functioning of the device as so far described is as follows: Presuming it is desired to actuate the adjuster mechanism for a sash or the equivalent, the adjuster being located at a high elevation above the floor, the operator then elevates the pole in order to engage the finger 5i and the bar 58 with the yoke assembly of the bracket 25 as above indicated. Then as the pole is lowered slightly and tilted more to the vertical, the guide end 15 of the plug shaft it is guided and becomes inserted in the socket l! of the plug and socket assembly 37 on account of both the plug and the socket being square in'cross section or other suitable shape to interfit. A drive connectionis thus obtained between the plug shaft 74% and the outer tube 36 of the hollow shaft assembly 35. Then by actuating the chain 76 the operator may ro tate the sprocket wheel in either direction and thereby rotate the outer tube 55 and thereby manipulate the assembly of telescoping screws 55 to either open or close a pivoted sash or the equivalent. Manifestly when the desired adjustment is obtained the pole is shifted outwardly to a slight inclination and at the same time may be raised, thus disengaging the plug shaft '14 from the socket 4! and elevating the finger 51 and the cross bar 53 is released from the yoke bracket 25. As installations of this type are usually installed in multiple, the operator may then proceed from one sash to the other, the common actuating device of the assembly 58 being suitable for all of the connections.

Where it is desired to have the sprocket wheel and chain drive as an integral equipment with the adjusting mechanism for the sash, I modify the installation as shown in Fig. 4 in which instance as the bracket 25 is not required, this may be removed. As above mentioned, it is merely attached by the screws 29 to the hinge leaf plate removing the cover plate 64 and removing the sprocket wheel 12 together with the assembled plug shaft "M. This equipment is then reassembled and connected as shown in Fig. 4, however if it is desired to have the housing rigidly attached to the hinge leaf IE, it is secured thereto by the'screws 63 which are threaded into the receiving sockets i8, however in theillustration of Figs. 4 and 5, the housing assemblyand the pulley is not rigidly connected to the hinge plate but mounted to allow a swivelling action. 'The plug shaft 14 is inserted in the socket 83 of the shorter thrust socket plug and rigidly attached by replacing the pin 42, the plug having a perforation 84 to receive such pin. By this construction the plug shaft 14 becomes rigidly attached to the thrust plug and socket assembly 80 and hence to the outer tube 36 which has contained therein the assembly of telescoping screws #5. The back plate BI and the. housingprevent disconnection ofQthfe tube assembly and theplugliil and-on account ofthe enlarged. cylindrical portion 73 having abearihg in the back plate Gl and the cylindrical end 1,! having. a bearing inthe cover 64, the housing is properly centered as regards the pljugsocket 80 and the hinged leaf 5.. It is preferable tohave a slight loose fit of the squared plug shaft 14 in the socket 83 as it is to have a somewhat looseflfitlof the wheel plug in the socket 41.. I

When the housing 69) and the assembled parts are not rigidly attached to the hinge leaf It as shown in Figs. efand 5, the housing with the pulley assembly may tilt as shown in Fig. 5. This allowsthefpintle it of the hinge knuckle assembly hi to be vertical where the sash pivots onawertical pivoting assembly as the housing mayhave a free rotation relative to the plug Hi and the partsto which it is attached. However where the hinge is horizontal as illustrated in Figs. 1 ands, it is preferable to attach the housing 60 to the leaf l6 by the screws 63. It will be apparent ,by' this construction that for each sash assembly it is necessary to have a depending chain, the chainv therefore being operative to. rotate the adjusting device for the. sash. These chains are usually made endless and of the desired length to reach from the adjusting assembly to a convenient position to be utilized by an operator. Thus in an assembly of sash and adjusters, it is the usual practice to have a group of these arranged without the attached operating assembly and to have this mounted on a pole but where there are a few isolated sash, it is desirable to have the operating sprocket wheel and chain attached to the adjusting assembly.

Various changes may be made in the details of the construction without departing from the spirit or scope of theinvention as defined in the appended claims.

I claim:

1. In a device as described in which a hinge is provided with a leaf plate and a driven shaft rotatably mounted in relation to such plate, such shaft being operative to actuate a device by rotation of such shaft combined with a gear housing, a shaft journalled therein having a sprocket wheel with an operating chain mounted on said shaft, means to connect the housing to the said leaf and a complementary plug and socket forming an operative drive connection between the shaft of the sprocket and the driven shaft.

2. In a device as described in which a hinge ing, a shaft journalled therein having a sprocket wheel with an operating chain mounted on said. shaft, means to connect the housing to the said leaf and a complementary plug and socket forming an operative drive connection between the shaft of the sprocket and the driven shaft, means to connect the plug and socket drive of the sprocket shaft and the driven shaft forpcsitive transmission of rotating motion.

4. In a device as described in which a moving leaf of a hinge forms a support for a rotatable driven shaft combined with the leaf having an opening and the shaft having a socket structure fitted therein, a gear housing having a sprocket wheel shaft journalled in said housing, a sprocket on said shaft with a drive chain, a driving plug connected to said shaft and means to interengage the said plug andthe socket for transmission of rotational ,motion from the sprocket to the driven shaft.

is provided with a leaf plate and a driven shaft rotatably mounted in relation to such plate, such shaft being operative to actuate a device by rotation of such shaft combined with a gear housing, a shaft journalled therein having a sprocket wheel with an operating chain mounted on said shaft, means to connect the housing to the said leaf and a complementary plug and socket forming an operative drive connection between the shaft of the sprocket and the driven shaft, a sup- 5. In a device as described in which a moving leaf of a hinge forms a support for a rotatable driven shaft combined with the leaf having .an opening and the shaft having a socket structure fitted therein, a gear housing having a sprocket wheel shaft journalled in said housing, a sprocket on said shaft with a drive chain, a driving plug connected to said shaft and means to interengage the said plug and the socket for transmission of rotational motion from the sprocket to the driven shaft, a supporting structure for the housing with the housing detachably connected thereto, the leaf and the support having an interengaging means for aligning the plug with the socket.

6. In a device as described in which a moving leaf of a hinge forms a support for a rotatable driven shaft combined with the leaf having an opening and the shaft having a socket structure fitted therein, a gear housing having a sprocket wheel shaft journalled in said housing, a sprocket on said shaft with a drive chain, a driving plug connected to said shaft and means to interengage the said plug and the socket for transmission of rotational motion from the sprocket to the driven shaft, means forming a positive interconnection of the plug and the said socket positioning the said housing in proximity to the leaf plate whereby rotation of the sprocket and sprocket shaft produces a direct rotational drive of the said socket and the driven shaft.

7. In a device as described in which a moving hinge of a leaf forms a support for a rotatably driven shaft combined with the leaf having an opening and the shaft having a socket structure secured thereto and fitted in the said opening, a gear housing having a back plate and a cover, a sprocket wheel shaft journalled in the back plate and cover with a sprocket mounted thereon and an operating chain for the sprocket, a plug complementary in shape to the socket connected to the sprocket wheel shaft and inserted in the said socket and means retaining the housing and plug in driving relation with the said socket of the driven shaft.

8. In a device as described in which a moving hinge of a leaf forms a support for a rotatably driven shaft combined with the leaf having an opening and the shaft having a socket structure secured thereto and fitted in the said opening, a gear housing having a back plate and a cover, a sprocket wheel shaft journalled in the back plate and cover with a sprocket mounted thereon and an operating chain for the sprocket, a plug tation of such shaft combined with a gear nous a sprocket wheel shaft journalled in the back plate and cover with a sprocket mounted thereon and an operating chain for the sprocket, a plug complementary in shape to the socket connected to the sprocket Wheel shaft and inserted in the said socket, and means for attaching the housing'to the said leaf with the plug inserted in the said socket for a driving rotational transmission from the sprocket wheel to the driven shaft.

10. In a device as described in which a moving hinge of a leaf forms a support for a rotatably driven shaft combined with the leaf having an opening and the shaft having a socket structure secured thereto and fitted in the said opening, a gear housing having a back plate and a cover, a sprocket wheel shaft journalled in the back plate and cover with a sprocket mounted thereon and an operating chain for the sprocket, a plug complementary in shape to the socket connected to the sprocket wheel shaft and inserted in the said socket, a finger plate secured to a pole, means attaching the housing to the said finger plate, such plate having an opening through 5 which the plug extends and interconnecting guide elements, one mounted on the leaf and the other on the finger plate for centering the plug in relation to the socket for rotational driving of the driven shaft by rotation of the sprocket.

11. In a device as described in which a mov ing hinge of a leaf forms a support for a rotatably driven shaft combined with the leaf having an opening and the shaft having a socket structure secured thereto and fitted in the said opening, a gear housing having a back plate and a cover, a sprocket wheel shaft journalled in the back plate and a cover with a sprocket mounted A thereon and an operating chain for the sprocket, a plug complementary in shape to the socket connected to the sprocket wheel shaft and inserted in the said socket, a yoke attached to the hinge leaf and extending thereabove, a finger plate attached to a pole and having an upwardly ex- 'tending finger with a bar to engage the said yoke, the said finger plate having an opening,

means attaching the housing to the finger plate with the plug extending through the opening thereof, the said yoke and finger positioning the plug in the said socket in driving relation for transmission of rotation from the sprocket to the said driven shaft.

BERT E. BARTHOLOMEW. 

